diff --git a/include/hardware/audio_effect.h b/include/hardware/audio_effect.h
index e49980d..3366e17 100644
--- a/include/hardware/audio_effect.h
+++ b/include/hardware/audio_effect.h
@@ -26,7 +26,7 @@
 
 #include <cutils/bitops.h>
 
-#include <system/audio.h>
+#include <system/audio_effect.h>
 
 
 __BEGIN_DECLS
@@ -36,231 +36,11 @@
 //      Common Definitions
 /////////////////////////////////////////////////
 
-//
-//--- Effect descriptor structure effect_descriptor_t
-//
-
-// Unique effect ID (can be generated from the following site:
-//  http://www.itu.int/ITU-T/asn1/uuid.html)
-// This format is used for both "type" and "uuid" fields of the effect descriptor structure.
-// - When used for effect type and the engine is implementing and effect corresponding to a standard
-// OpenSL ES interface, this ID must be the one defined in OpenSLES_IID.h for that interface.
-// - When used as uuid, it should be a unique UUID for this particular implementation.
-typedef struct effect_uuid_s {
-    uint32_t timeLow;
-    uint16_t timeMid;
-    uint16_t timeHiAndVersion;
-    uint16_t clockSeq;
-    uint8_t node[6];
-} effect_uuid_t;
-
-// Maximum length of character strings in structures defines by this API.
-#define EFFECT_STRING_LEN_MAX 64
-
-// NULL UUID definition (matches SL_IID_NULL_)
-#define EFFECT_UUID_INITIALIZER { 0xec7178ec, 0xe5e1, 0x4432, 0xa3f4, \
-                                  { 0x46, 0x57, 0xe6, 0x79, 0x52, 0x10 } }
-static const effect_uuid_t EFFECT_UUID_NULL_ = EFFECT_UUID_INITIALIZER;
-static const effect_uuid_t * const EFFECT_UUID_NULL = &EFFECT_UUID_NULL_;
-static const char * const EFFECT_UUID_NULL_STR = "ec7178ec-e5e1-4432-a3f4-4657e6795210";
-
-
-// The effect descriptor contains necessary information to facilitate the enumeration of the effect
-// engines present in a library.
-typedef struct effect_descriptor_s {
-    effect_uuid_t type;     // UUID of to the OpenSL ES interface implemented by this effect
-    effect_uuid_t uuid;     // UUID for this particular implementation
-    uint32_t apiVersion;    // Version of the effect control API implemented
-    uint32_t flags;         // effect engine capabilities/requirements flags (see below)
-    uint16_t cpuLoad;       // CPU load indication (see below)
-    uint16_t memoryUsage;   // Data Memory usage (see below)
-    char    name[EFFECT_STRING_LEN_MAX];   // human readable effect name
-    char    implementor[EFFECT_STRING_LEN_MAX];    // human readable effect implementor name
-} effect_descriptor_t;
-
-// CPU load and memory usage indication: each effect implementation must provide an indication of
-// its CPU and memory usage for the audio effect framework to limit the number of effects
-// instantiated at a given time on a given platform.
-// The CPU load is expressed in 0.1 MIPS units as estimated on an ARM9E core (ARMv5TE) with 0 WS.
-// The memory usage is expressed in KB and includes only dynamically allocated memory
-
-// Definitions for flags field of effect descriptor.
-//  +---------------------------+-----------+-----------------------------------
-//  | description               | bits      | values
-//  +---------------------------+-----------+-----------------------------------
-//  | connection mode           | 0..2      | 0 insert: after track process
-//  |                           |           | 1 auxiliary: connect to track auxiliary
-//  |                           |           |  output and use send level
-//  |                           |           | 2 replace: replaces track process function;
-//  |                           |           |   must implement SRC, volume and mono to stereo.
-//  |                           |           | 3 pre processing: applied below audio HAL on input
-//  |                           |           | 4 post processing: applied below audio HAL on output
-//  |                           |           | 5 - 7 reserved
-//  +---------------------------+-----------+-----------------------------------
-//  | insertion preference      | 3..5      | 0 none
-//  |                           |           | 1 first of the chain
-//  |                           |           | 2 last of the chain
-//  |                           |           | 3 exclusive (only effect in the insert chain)
-//  |                           |           | 4..7 reserved
-//  +---------------------------+-----------+-----------------------------------
-//  | Volume management         | 6..8      | 0 none
-//  |                           |           | 1 implements volume control
-//  |                           |           | 2 requires volume indication
-//  |                           |           | 4 reserved
-//  +---------------------------+-----------+-----------------------------------
-//  | Device indication         | 9..11     | 0 none
-//  |                           |           | 1 requires device updates
-//  |                           |           | 2, 4 reserved
-//  +---------------------------+-----------+-----------------------------------
-//  | Sample input mode         | 12..13    | 1 direct: process() function or EFFECT_CMD_SET_CONFIG
-//  |                           |           |   command must specify a buffer descriptor
-//  |                           |           | 2 provider: process() function uses the
-//  |                           |           |   bufferProvider indicated by the
-//  |                           |           |   EFFECT_CMD_SET_CONFIG command to request input.
-//  |                           |           |   buffers.
-//  |                           |           | 3 both: both input modes are supported
-//  +---------------------------+-----------+-----------------------------------
-//  | Sample output mode        | 14..15    | 1 direct: process() function or EFFECT_CMD_SET_CONFIG
-//  |                           |           |   command must specify a buffer descriptor
-//  |                           |           | 2 provider: process() function uses the
-//  |                           |           |   bufferProvider indicated by the
-//  |                           |           |   EFFECT_CMD_SET_CONFIG command to request output
-//  |                           |           |   buffers.
-//  |                           |           | 3 both: both output modes are supported
-//  +---------------------------+-----------+-----------------------------------
-//  | Hardware acceleration     | 16..17    | 0 No hardware acceleration
-//  |                           |           | 1 non tunneled hw acceleration: the process() function
-//  |                           |           |   reads the samples, send them to HW accelerated
-//  |                           |           |   effect processor, reads back the processed samples
-//  |                           |           |   and returns them to the output buffer.
-//  |                           |           | 2 tunneled hw acceleration: the process() function is
-//  |                           |           |   transparent. The effect interface is only used to
-//  |                           |           |   control the effect engine. This mode is relevant for
-//  |                           |           |   global effects actually applied by the audio
-//  |                           |           |   hardware on the output stream.
-//  +---------------------------+-----------+-----------------------------------
-//  | Audio Mode indication     | 18..19    | 0 none
-//  |                           |           | 1 requires audio mode updates
-//  |                           |           | 2..3 reserved
-//  +---------------------------+-----------+-----------------------------------
-//  | Audio source indication   | 20..21    | 0 none
-//  |                           |           | 1 requires audio source updates
-//  |                           |           | 2..3 reserved
-//  +---------------------------+-----------+-----------------------------------
-//  | Effect offload supported  | 22        | 0 The effect cannot be offloaded to an audio DSP
-//  |                           |           | 1 The effect can be offloaded to an audio DSP
-//  +---------------------------+-----------+-----------------------------------
-//  | Process function not      | 23        | 0 The effect implements a process function.
-//  | implemented               |           | 1 The effect does not implement a process function:
-//  |                           |           |   enabling the effect has no impact on latency or
-//  |                           |           |   CPU load.
-//  |                           |           |   Effect implementations setting this flag do not have
-//  |                           |           |   to implement a process function.
-//  +---------------------------+-----------+-----------------------------------
-
-// Insert mode
-#define EFFECT_FLAG_TYPE_SHIFT          0
-#define EFFECT_FLAG_TYPE_SIZE           3
-#define EFFECT_FLAG_TYPE_MASK           (((1 << EFFECT_FLAG_TYPE_SIZE) -1) \
-                                            << EFFECT_FLAG_TYPE_SHIFT)
-#define EFFECT_FLAG_TYPE_INSERT         (0 << EFFECT_FLAG_TYPE_SHIFT)
-#define EFFECT_FLAG_TYPE_AUXILIARY      (1 << EFFECT_FLAG_TYPE_SHIFT)
-#define EFFECT_FLAG_TYPE_REPLACE        (2 << EFFECT_FLAG_TYPE_SHIFT)
-#define EFFECT_FLAG_TYPE_PRE_PROC       (3 << EFFECT_FLAG_TYPE_SHIFT)
-#define EFFECT_FLAG_TYPE_POST_PROC      (4 << EFFECT_FLAG_TYPE_SHIFT)
-
-// Insert preference
-#define EFFECT_FLAG_INSERT_SHIFT        (EFFECT_FLAG_TYPE_SHIFT + EFFECT_FLAG_TYPE_SIZE)
-#define EFFECT_FLAG_INSERT_SIZE         3
-#define EFFECT_FLAG_INSERT_MASK         (((1 << EFFECT_FLAG_INSERT_SIZE) -1) \
-                                            << EFFECT_FLAG_INSERT_SHIFT)
-#define EFFECT_FLAG_INSERT_ANY          (0 << EFFECT_FLAG_INSERT_SHIFT)
-#define EFFECT_FLAG_INSERT_FIRST        (1 << EFFECT_FLAG_INSERT_SHIFT)
-#define EFFECT_FLAG_INSERT_LAST         (2 << EFFECT_FLAG_INSERT_SHIFT)
-#define EFFECT_FLAG_INSERT_EXCLUSIVE    (3 << EFFECT_FLAG_INSERT_SHIFT)
-
-
-// Volume control
-#define EFFECT_FLAG_VOLUME_SHIFT        (EFFECT_FLAG_INSERT_SHIFT + EFFECT_FLAG_INSERT_SIZE)
-#define EFFECT_FLAG_VOLUME_SIZE         3
-#define EFFECT_FLAG_VOLUME_MASK         (((1 << EFFECT_FLAG_VOLUME_SIZE) -1) \
-                                            << EFFECT_FLAG_VOLUME_SHIFT)
-#define EFFECT_FLAG_VOLUME_CTRL         (1 << EFFECT_FLAG_VOLUME_SHIFT)
-#define EFFECT_FLAG_VOLUME_IND          (2 << EFFECT_FLAG_VOLUME_SHIFT)
-#define EFFECT_FLAG_VOLUME_NONE         (0 << EFFECT_FLAG_VOLUME_SHIFT)
-
-// Device indication
-#define EFFECT_FLAG_DEVICE_SHIFT        (EFFECT_FLAG_VOLUME_SHIFT + EFFECT_FLAG_VOLUME_SIZE)
-#define EFFECT_FLAG_DEVICE_SIZE         3
-#define EFFECT_FLAG_DEVICE_MASK         (((1 << EFFECT_FLAG_DEVICE_SIZE) -1) \
-                                            << EFFECT_FLAG_DEVICE_SHIFT)
-#define EFFECT_FLAG_DEVICE_IND          (1 << EFFECT_FLAG_DEVICE_SHIFT)
-#define EFFECT_FLAG_DEVICE_NONE         (0 << EFFECT_FLAG_DEVICE_SHIFT)
-
-// Sample input modes
-#define EFFECT_FLAG_INPUT_SHIFT         (EFFECT_FLAG_DEVICE_SHIFT + EFFECT_FLAG_DEVICE_SIZE)
-#define EFFECT_FLAG_INPUT_SIZE          2
-#define EFFECT_FLAG_INPUT_MASK          (((1 << EFFECT_FLAG_INPUT_SIZE) -1) \
-                                            << EFFECT_FLAG_INPUT_SHIFT)
-#define EFFECT_FLAG_INPUT_DIRECT        (1 << EFFECT_FLAG_INPUT_SHIFT)
-#define EFFECT_FLAG_INPUT_PROVIDER      (2 << EFFECT_FLAG_INPUT_SHIFT)
-#define EFFECT_FLAG_INPUT_BOTH          (3 << EFFECT_FLAG_INPUT_SHIFT)
-
-// Sample output modes
-#define EFFECT_FLAG_OUTPUT_SHIFT        (EFFECT_FLAG_INPUT_SHIFT + EFFECT_FLAG_INPUT_SIZE)
-#define EFFECT_FLAG_OUTPUT_SIZE         2
-#define EFFECT_FLAG_OUTPUT_MASK         (((1 << EFFECT_FLAG_OUTPUT_SIZE) -1) \
-                                            << EFFECT_FLAG_OUTPUT_SHIFT)
-#define EFFECT_FLAG_OUTPUT_DIRECT       (1 << EFFECT_FLAG_OUTPUT_SHIFT)
-#define EFFECT_FLAG_OUTPUT_PROVIDER     (2 << EFFECT_FLAG_OUTPUT_SHIFT)
-#define EFFECT_FLAG_OUTPUT_BOTH         (3 << EFFECT_FLAG_OUTPUT_SHIFT)
-
-// Hardware acceleration mode
-#define EFFECT_FLAG_HW_ACC_SHIFT        (EFFECT_FLAG_OUTPUT_SHIFT + EFFECT_FLAG_OUTPUT_SIZE)
-#define EFFECT_FLAG_HW_ACC_SIZE         2
-#define EFFECT_FLAG_HW_ACC_MASK         (((1 << EFFECT_FLAG_HW_ACC_SIZE) -1) \
-                                            << EFFECT_FLAG_HW_ACC_SHIFT)
-#define EFFECT_FLAG_HW_ACC_SIMPLE       (1 << EFFECT_FLAG_HW_ACC_SHIFT)
-#define EFFECT_FLAG_HW_ACC_TUNNEL       (2 << EFFECT_FLAG_HW_ACC_SHIFT)
-
-// Audio mode indication
-#define EFFECT_FLAG_AUDIO_MODE_SHIFT    (EFFECT_FLAG_HW_ACC_SHIFT + EFFECT_FLAG_HW_ACC_SIZE)
-#define EFFECT_FLAG_AUDIO_MODE_SIZE     2
-#define EFFECT_FLAG_AUDIO_MODE_MASK     (((1 << EFFECT_FLAG_AUDIO_MODE_SIZE) -1) \
-                                            << EFFECT_FLAG_AUDIO_MODE_SHIFT)
-#define EFFECT_FLAG_AUDIO_MODE_IND      (1 << EFFECT_FLAG_AUDIO_MODE_SHIFT)
-#define EFFECT_FLAG_AUDIO_MODE_NONE     (0 << EFFECT_FLAG_AUDIO_MODE_SHIFT)
-
-// Audio source indication
-#define EFFECT_FLAG_AUDIO_SOURCE_SHIFT  (EFFECT_FLAG_AUDIO_MODE_SHIFT + EFFECT_FLAG_AUDIO_MODE_SIZE)
-#define EFFECT_FLAG_AUDIO_SOURCE_SIZE   2
-#define EFFECT_FLAG_AUDIO_SOURCE_MASK   (((1 << EFFECT_FLAG_AUDIO_SOURCE_SIZE) -1) \
-                                          << EFFECT_FLAG_AUDIO_SOURCE_SHIFT)
-#define EFFECT_FLAG_AUDIO_SOURCE_IND    (1 << EFFECT_FLAG_AUDIO_SOURCE_SHIFT)
-#define EFFECT_FLAG_AUDIO_SOURCE_NONE   (0 << EFFECT_FLAG_AUDIO_SOURCE_SHIFT)
-
-// Effect offload indication
-#define EFFECT_FLAG_OFFLOAD_SHIFT       (EFFECT_FLAG_AUDIO_SOURCE_SHIFT + \
-                                                    EFFECT_FLAG_AUDIO_SOURCE_SIZE)
-#define EFFECT_FLAG_OFFLOAD_SIZE        1
-#define EFFECT_FLAG_OFFLOAD_MASK        (((1 << EFFECT_FLAG_OFFLOAD_SIZE) -1) \
-                                          << EFFECT_FLAG_OFFLOAD_SHIFT)
-#define EFFECT_FLAG_OFFLOAD_SUPPORTED   (1 << EFFECT_FLAG_OFFLOAD_SHIFT)
-
-// Effect has no process indication
-#define EFFECT_FLAG_NO_PROCESS_SHIFT       (EFFECT_FLAG_OFFLOAD_SHIFT + \
-                                                    EFFECT_FLAG_OFFLOAD_SIZE)
-#define EFFECT_FLAG_NO_PROCESS_SIZE        1
-#define EFFECT_FLAG_NO_PROCESS_MASK        (((1 << EFFECT_FLAG_NO_PROCESS_SIZE) -1) \
-                                          << EFFECT_FLAG_NO_PROCESS_SHIFT)
-#define EFFECT_FLAG_NO_PROCESS          (1 << EFFECT_FLAG_NO_PROCESS_SHIFT)
-
 #define EFFECT_MAKE_API_VERSION(M, m)  (((M)<<16) | ((m) & 0xFFFF))
 #define EFFECT_API_VERSION_MAJOR(v)    ((v)>>16)
 #define EFFECT_API_VERSION_MINOR(v)    ((m) & 0xFFFF)
 
 
-
 /////////////////////////////////////////////////
 //      Effect control interface
 /////////////////////////////////////////////////
@@ -288,15 +68,6 @@
 // type and return its address as effect_handle_t
 typedef struct effect_interface_s **effect_handle_t;
 
-
-// Forward definition of type audio_buffer_t
-typedef struct audio_buffer_s audio_buffer_t;
-
-
-
-
-
-
 // Effect control interface definition
 struct effect_interface_s {
     ////////////////////////////////////////////////////////////////////////////////
@@ -428,496 +199,6 @@
                                audio_buffer_t *outBuffer);
 };
 
-
-//
-//--- Standardized command codes for command() function
-//
-enum effect_command_e {
-   EFFECT_CMD_INIT,                 // initialize effect engine
-   EFFECT_CMD_SET_CONFIG,           // configure effect engine (see effect_config_t)
-   EFFECT_CMD_RESET,                // reset effect engine
-   EFFECT_CMD_ENABLE,               // enable effect process
-   EFFECT_CMD_DISABLE,              // disable effect process
-   EFFECT_CMD_SET_PARAM,            // set parameter immediately (see effect_param_t)
-   EFFECT_CMD_SET_PARAM_DEFERRED,   // set parameter deferred
-   EFFECT_CMD_SET_PARAM_COMMIT,     // commit previous set parameter deferred
-   EFFECT_CMD_GET_PARAM,            // get parameter
-   EFFECT_CMD_SET_DEVICE,           // set audio device (see audio.h, audio_devices_t)
-   EFFECT_CMD_SET_VOLUME,           // set volume
-   EFFECT_CMD_SET_AUDIO_MODE,       // set the audio mode (normal, ring, ...)
-   EFFECT_CMD_SET_CONFIG_REVERSE,   // configure effect engine reverse stream(see effect_config_t)
-   EFFECT_CMD_SET_INPUT_DEVICE,     // set capture device (see audio.h, audio_devices_t)
-   EFFECT_CMD_GET_CONFIG,           // read effect engine configuration
-   EFFECT_CMD_GET_CONFIG_REVERSE,   // read configure effect engine reverse stream configuration
-   EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS,// get all supported configurations for a feature.
-   EFFECT_CMD_GET_FEATURE_CONFIG,   // get current feature configuration
-   EFFECT_CMD_SET_FEATURE_CONFIG,   // set current feature configuration
-   EFFECT_CMD_SET_AUDIO_SOURCE,     // set the audio source (see audio.h, audio_source_t)
-   EFFECT_CMD_OFFLOAD,              // set if effect thread is an offload one,
-                                    // send the ioHandle of the effect thread
-   EFFECT_CMD_FIRST_PROPRIETARY = 0x10000 // first proprietary command code
-};
-
-//==================================================================================================
-// command: EFFECT_CMD_INIT
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Initialize effect engine: All configurations return to default
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: 0
-//  data: N/A
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(int)
-//  data: status
-//==================================================================================================
-// command: EFFECT_CMD_SET_CONFIG
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Apply new audio parameters configurations for input and output buffers
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(effect_config_t)
-//  data: effect_config_t
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(int)
-//  data: status
-//==================================================================================================
-// command: EFFECT_CMD_RESET
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Reset the effect engine. Keep configuration but resets state and buffer content
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: 0
-//  data: N/A
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: 0
-//  data: N/A
-//==================================================================================================
-// command: EFFECT_CMD_ENABLE
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Enable the process. Called by the framework before the first call to process()
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: 0
-//  data: N/A
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(int)
-//  data: status
-//==================================================================================================
-// command: EFFECT_CMD_DISABLE
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Disable the process. Called by the framework after the last call to process()
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: 0
-//  data: N/A
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(int)
-//  data: status
-//==================================================================================================
-// command: EFFECT_CMD_SET_PARAM
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Set a parameter and apply it immediately
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(effect_param_t) + size of param and value
-//  data: effect_param_t + param + value. See effect_param_t definition below for value offset
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(int)
-//  data: status
-//==================================================================================================
-// command: EFFECT_CMD_SET_PARAM_DEFERRED
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Set a parameter but apply it only when receiving EFFECT_CMD_SET_PARAM_COMMIT command
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(effect_param_t) + size of param and value
-//  data: effect_param_t + param + value. See effect_param_t definition below for value offset
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: 0
-//  data: N/A
-//==================================================================================================
-// command: EFFECT_CMD_SET_PARAM_COMMIT
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Apply all previously received EFFECT_CMD_SET_PARAM_DEFERRED commands
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: 0
-//  data: N/A
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(int)
-//  data: status
-//==================================================================================================
-// command: EFFECT_CMD_GET_PARAM
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Get a parameter value
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(effect_param_t) + size of param
-//  data: effect_param_t + param
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(effect_param_t) + size of param and value
-//  data: effect_param_t + param + value. See effect_param_t definition below for value offset
-//==================================================================================================
-// command: EFFECT_CMD_SET_DEVICE
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Set the rendering device the audio output path is connected to. See audio.h, audio_devices_t
-//  for device values.
-//  The effect implementation must set EFFECT_FLAG_DEVICE_IND flag in its descriptor to receive this
-//  command when the device changes
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(uint32_t)
-//  data: uint32_t
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: 0
-//  data: N/A
-//==================================================================================================
-// command: EFFECT_CMD_SET_VOLUME
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Set and get volume. Used by audio framework to delegate volume control to effect engine.
-//  The effect implementation must set EFFECT_FLAG_VOLUME_IND or EFFECT_FLAG_VOLUME_CTRL flag in
-//  its descriptor to receive this command before every call to process() function
-//  If EFFECT_FLAG_VOLUME_CTRL flag is set in the effect descriptor, the effect engine must return
-//  the volume that should be applied before the effect is processed. The overall volume (the volume
-//  actually applied by the effect engine multiplied by the returned value) should match the value
-//  indicated in the command.
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: n * sizeof(uint32_t)
-//  data: volume for each channel defined in effect_config_t for output buffer expressed in
-//      8.24 fixed point format
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: n * sizeof(uint32_t) / 0
-//  data: - if EFFECT_FLAG_VOLUME_CTRL is set in effect descriptor:
-//              volume for each channel defined in effect_config_t for output buffer expressed in
-//              8.24 fixed point format
-//        - if EFFECT_FLAG_VOLUME_CTRL is not set in effect descriptor:
-//              N/A
-//  It is legal to receive a null pointer as pReplyData in which case the effect framework has
-//  delegated volume control to another effect
-//==================================================================================================
-// command: EFFECT_CMD_SET_AUDIO_MODE
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Set the audio mode. The effect implementation must set EFFECT_FLAG_AUDIO_MODE_IND flag in its
-//  descriptor to receive this command when the audio mode changes.
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(uint32_t)
-//  data: audio_mode_t
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: 0
-//  data: N/A
-//==================================================================================================
-// command: EFFECT_CMD_SET_CONFIG_REVERSE
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Apply new audio parameters configurations for input and output buffers of reverse stream.
-//  An example of reverse stream is the echo reference supplied to an Acoustic Echo Canceler.
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(effect_config_t)
-//  data: effect_config_t
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(int)
-//  data: status
-//==================================================================================================
-// command: EFFECT_CMD_SET_INPUT_DEVICE
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Set the capture device the audio input path is connected to. See audio.h, audio_devices_t
-//  for device values.
-//  The effect implementation must set EFFECT_FLAG_DEVICE_IND flag in its descriptor to receive this
-//  command when the device changes
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(uint32_t)
-//  data: uint32_t
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: 0
-//  data: N/A
-//==================================================================================================
-// command: EFFECT_CMD_GET_CONFIG
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Read audio parameters configurations for input and output buffers
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: 0
-//  data: N/A
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(effect_config_t)
-//  data: effect_config_t
-//==================================================================================================
-// command: EFFECT_CMD_GET_CONFIG_REVERSE
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Read audio parameters configurations for input and output buffers of reverse stream
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: 0
-//  data: N/A
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(effect_config_t)
-//  data: effect_config_t
-//==================================================================================================
-// command: EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Queries for supported configurations for a particular feature (e.g. get the supported
-// combinations of main and auxiliary channels for a noise suppressor).
-// The command parameter is the feature identifier (See effect_feature_e for a list of defined
-// features) followed by the maximum number of configuration descriptor to return.
-// The reply is composed of:
-//  - status (uint32_t):
-//          - 0 if feature is supported
-//          - -ENOSYS if the feature is not supported,
-//          - -ENOMEM if the feature is supported but the total number of supported configurations
-//          exceeds the maximum number indicated by the caller.
-//  - total number of supported configurations (uint32_t)
-//  - an array of configuration descriptors.
-// The actual number of descriptors returned must not exceed the maximum number indicated by
-// the caller.
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: 2 x sizeof(uint32_t)
-//  data: effect_feature_e + maximum number of configurations to return
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: 2 x sizeof(uint32_t) + n x sizeof (<config descriptor>)
-//  data: status + total number of configurations supported + array of n config descriptors
-//==================================================================================================
-// command: EFFECT_CMD_GET_FEATURE_CONFIG
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Retrieves current configuration for a given feature.
-// The reply status is:
-//      - 0 if feature is supported
-//      - -ENOSYS if the feature is not supported,
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(uint32_t)
-//  data: effect_feature_e
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(uint32_t) + sizeof (<config descriptor>)
-//  data: status + config descriptor
-//==================================================================================================
-// command: EFFECT_CMD_SET_FEATURE_CONFIG
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Sets current configuration for a given feature.
-// The reply status is:
-//      - 0 if feature is supported
-//      - -ENOSYS if the feature is not supported,
-//      - -EINVAL if the configuration is invalid
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(uint32_t) + sizeof (<config descriptor>)
-//  data: effect_feature_e + config descriptor
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(uint32_t)
-//  data: status
-//==================================================================================================
-// command: EFFECT_CMD_SET_AUDIO_SOURCE
-//--------------------------------------------------------------------------------------------------
-// description:
-//  Set the audio source the capture path is configured for (Camcorder, voice recognition...).
-//  See audio.h, audio_source_t for values.
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(uint32_t)
-//  data: uint32_t
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: 0
-//  data: N/A
-//==================================================================================================
-// command: EFFECT_CMD_OFFLOAD
-//--------------------------------------------------------------------------------------------------
-// description:
-//  1.indicate if the playback thread the effect is attached to is offloaded or not
-//  2.update the io handle of the playback thread the effect is attached to
-//--------------------------------------------------------------------------------------------------
-// command format:
-//  size: sizeof(effect_offload_param_t)
-//  data: effect_offload_param_t
-//--------------------------------------------------------------------------------------------------
-// reply format:
-//  size: sizeof(uint32_t)
-//  data: uint32_t
-//--------------------------------------------------------------------------------------------------
-// command: EFFECT_CMD_FIRST_PROPRIETARY
-//--------------------------------------------------------------------------------------------------
-// description:
-//  All proprietary effect commands must use command codes above this value. The size and format of
-//  command and response fields is free in this case
-//==================================================================================================
-
-
-// Audio buffer descriptor used by process(), bufferProvider() functions and buffer_config_t
-// structure. Multi-channel audio is always interleaved. The channel order is from LSB to MSB with
-// regard to the channel mask definition in audio.h, audio_channel_mask_t e.g :
-// Stereo: left, right
-// 5 point 1: front left, front right, front center, low frequency, back left, back right
-// The buffer size is expressed in frame count, a frame being composed of samples for all
-// channels at a given time. Frame size for unspecified format (AUDIO_FORMAT_OTHER) is 8 bit by
-// definition
-struct audio_buffer_s {
-    size_t   frameCount;        // number of frames in buffer
-    union {
-        void*       raw;        // raw pointer to start of buffer
-        int32_t*    s32;        // pointer to signed 32 bit data at start of buffer
-        int16_t*    s16;        // pointer to signed 16 bit data at start of buffer
-        uint8_t*    u8;         // pointer to unsigned 8 bit data at start of buffer
-    };
-};
-
-// The buffer_provider_s structure contains functions that can be used
-// by the effect engine process() function to query and release input
-// or output audio buffer.
-// The getBuffer() function is called to retrieve a buffer where data
-// should read from or written to by process() function.
-// The releaseBuffer() function MUST be called when the buffer retrieved
-// with getBuffer() is not needed anymore.
-// The process function should use the buffer provider mechanism to retrieve
-// input or output buffer if the inBuffer or outBuffer passed as argument is NULL
-// and the buffer configuration (buffer_config_t) given by the EFFECT_CMD_SET_CONFIG
-// command did not specify an audio buffer.
-
-typedef int32_t (* buffer_function_t)(void *cookie, audio_buffer_t *buffer);
-
-typedef struct buffer_provider_s {
-    buffer_function_t getBuffer;       // retrieve next buffer
-    buffer_function_t releaseBuffer;   // release used buffer
-    void       *cookie;                // for use by client of buffer provider functions
-} buffer_provider_t;
-
-
-// The buffer_config_s structure specifies the input or output audio format
-// to be used by the effect engine. It is part of the effect_config_t
-// structure that defines both input and output buffer configurations and is
-// passed by the EFFECT_CMD_SET_CONFIG or EFFECT_CMD_SET_CONFIG_REVERSE command.
-typedef struct buffer_config_s {
-    audio_buffer_t  buffer;     // buffer for use by process() function if not passed explicitly
-    uint32_t   samplingRate;    // sampling rate
-    uint32_t   channels;        // channel mask (see audio_channel_mask_t in audio.h)
-    buffer_provider_t bufferProvider;   // buffer provider
-    uint8_t    format;          // Audio format (see audio_format_t in audio.h)
-    uint8_t    accessMode;      // read/write or accumulate in buffer (effect_buffer_access_e)
-    uint16_t   mask;            // indicates which of the above fields is valid
-} buffer_config_t;
-
-// Values for "accessMode" field of buffer_config_t:
-//   overwrite, read only, accumulate (read/modify/write)
-enum effect_buffer_access_e {
-    EFFECT_BUFFER_ACCESS_WRITE,
-    EFFECT_BUFFER_ACCESS_READ,
-    EFFECT_BUFFER_ACCESS_ACCUMULATE
-
-};
-
-// feature identifiers for EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS command
-enum effect_feature_e {
-    EFFECT_FEATURE_AUX_CHANNELS, // supports auxiliary channels (e.g. dual mic noise suppressor)
-    EFFECT_FEATURE_CNT
-};
-
-// EFFECT_FEATURE_AUX_CHANNELS feature configuration descriptor. Describe a combination
-// of main and auxiliary channels supported
-typedef struct channel_config_s {
-    audio_channel_mask_t main_channels; // channel mask for main channels
-    audio_channel_mask_t aux_channels;  // channel mask for auxiliary channels
-} channel_config_t;
-
-
-// Values for bit field "mask" in buffer_config_t. If a bit is set, the corresponding field
-// in buffer_config_t must be taken into account when executing the EFFECT_CMD_SET_CONFIG command
-#define EFFECT_CONFIG_BUFFER    0x0001  // buffer field must be taken into account
-#define EFFECT_CONFIG_SMP_RATE  0x0002  // samplingRate field must be taken into account
-#define EFFECT_CONFIG_CHANNELS  0x0004  // channels field must be taken into account
-#define EFFECT_CONFIG_FORMAT    0x0008  // format field must be taken into account
-#define EFFECT_CONFIG_ACC_MODE  0x0010  // accessMode field must be taken into account
-#define EFFECT_CONFIG_PROVIDER  0x0020  // bufferProvider field must be taken into account
-#define EFFECT_CONFIG_ALL (EFFECT_CONFIG_BUFFER | EFFECT_CONFIG_SMP_RATE | \
-                           EFFECT_CONFIG_CHANNELS | EFFECT_CONFIG_FORMAT | \
-                           EFFECT_CONFIG_ACC_MODE | EFFECT_CONFIG_PROVIDER)
-
-
-// effect_config_s structure describes the format of the pCmdData argument of EFFECT_CMD_SET_CONFIG
-// command to configure audio parameters and buffers for effect engine input and output.
-typedef struct effect_config_s {
-    buffer_config_t   inputCfg;
-    buffer_config_t   outputCfg;
-} effect_config_t;
-
-
-// effect_param_s structure describes the format of the pCmdData argument of EFFECT_CMD_SET_PARAM
-// command and pCmdData and pReplyData of EFFECT_CMD_GET_PARAM command.
-// psize and vsize represent the actual size of parameter and value.
-//
-// NOTE: the start of value field inside the data field is always on a 32 bit boundary:
-//
-//  +-----------+
-//  | status    | sizeof(int)
-//  +-----------+
-//  | psize     | sizeof(int)
-//  +-----------+
-//  | vsize     | sizeof(int)
-//  +-----------+
-//  |           |   |           |
-//  ~ parameter ~   > psize     |
-//  |           |   |           >  ((psize - 1)/sizeof(int) + 1) * sizeof(int)
-//  +-----------+               |
-//  | padding   |               |
-//  +-----------+
-//  |           |   |
-//  ~ value     ~   > vsize
-//  |           |   |
-//  +-----------+
-
-typedef struct effect_param_s {
-    int32_t     status;     // Transaction status (unused for command, used for reply)
-    uint32_t    psize;      // Parameter size
-    uint32_t    vsize;      // Value size
-    char        data[];     // Start of Parameter + Value data
-} effect_param_t;
-
-// structure used by EFFECT_CMD_OFFLOAD command
-typedef struct effect_offload_param_s {
-    bool isOffload;         // true if the playback thread the effect is attached to is offloaded
-    int ioHandle;           // io handle of the playback thread the effect is attached to
-} effect_offload_param_t;
-
-
 /////////////////////////////////////////////////
 //      Effect library interface
 /////////////////////////////////////////////////